diff --git a/doc/namespace-2.dia b/doc/namespace-2.dia
new file mode 100644
index 000000000..5cd5ed59e
--- /dev/null
+++ b/doc/namespace-2.dia
@@ -0,0 +1,1658 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<dia:diagram xmlns:dia="http://www.lysator.liu.se/~alla/dia/">
+  <dia:diagramdata>
+    <dia:attribute name="background">
+      <dia:color val="#ffffff"/>
+    </dia:attribute>
+    <dia:attribute name="pagebreak">
+      <dia:color val="#000099"/>
+    </dia:attribute>
+    <dia:attribute name="paper">
+      <dia:composite type="paper">
+        <dia:attribute name="name">
+          <dia:string>#A4#</dia:string>
+        </dia:attribute>
+        <dia:attribute name="tmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="bmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="lmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="rmargin">
+          <dia:real val="2.8222000598907471"/>
+        </dia:attribute>
+        <dia:attribute name="is_portrait">
+          <dia:boolean val="true"/>
+        </dia:attribute>
+        <dia:attribute name="scaling">
+          <dia:real val="1.0929253101348877"/>
+        </dia:attribute>
+        <dia:attribute name="fitto">
+          <dia:boolean val="true"/>
+        </dia:attribute>
+        <dia:attribute name="fitwidth">
+          <dia:int val="2"/>
+        </dia:attribute>
+        <dia:attribute name="fitheight">
+          <dia:int val="2"/>
+        </dia:attribute>
+      </dia:composite>
+    </dia:attribute>
+    <dia:attribute name="grid">
+      <dia:composite type="grid">
+        <dia:attribute name="width_x">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="width_y">
+          <dia:real val="1"/>
+        </dia:attribute>
+        <dia:attribute name="visible_x">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:attribute name="visible_y">
+          <dia:int val="1"/>
+        </dia:attribute>
+        <dia:composite type="color"/>
+      </dia:composite>
+    </dia:attribute>
+    <dia:attribute name="color">
+      <dia:color val="#d8e5e5"/>
+    </dia:attribute>
+    <dia:attribute name="guides">
+      <dia:composite type="guides">
+        <dia:attribute name="hguides"/>
+        <dia:attribute name="vguides"/>
+      </dia:composite>
+    </dia:attribute>
+  </dia:diagramdata>
+  <dia:layer name="Background" visible="true">
+    <dia:object type="Flowchart - Box" version="0" id="O0">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-1,-27"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-1.05,-27.05;6.05,-24.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-1,-27"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/devices/[0-n]#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-0.65,-25.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O1">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-8,-39"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-8.05,-39.05;-0.95,-36.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-8,-39"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#NodeList#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-4.5,-37.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O2">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-1,-29"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-1.05,-29.05;6.05,-26.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-1,-29"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Node#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="2.5,-27.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O3">
+      <dia:attribute name="obj_pos">
+        <dia:point val="3,-16"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="2.95,-16.05;7.05,-13.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="3,-16"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/queue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="3.35,-14.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O4">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-8,-37"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-8.05,-37.05;-0.95,-34.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-8,-37"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/nodes/[0-n]#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-7.65,-35.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O5">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-8,-31"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-8.05,-31.05;-3.95,-28.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-8,-31"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/udp#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-7.65,-29.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O6">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-16,-25"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-16.05,-25.05;-13.95,-22.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-16,-25"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/rx#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-15.65,-23.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O7">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-17,-19"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-17.05,-19.05;-9.95,-16.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-17,-19"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/netdevice#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-16.65,-17.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O8">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-4.5,-35"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-4.55754,-35.0575;3,-28.95"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-4.5,-35"/>
+        <dia:point val="-4,-32"/>
+        <dia:point val="2.5,-31"/>
+        <dia:point val="2.5,-29"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O4" connection="13"/>
+        <dia:connection handle="3" to="O2" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O9">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-4.5,-35"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-8.00142,-35.0606;-4.43937,-32.8685"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-4.5,-35"/>
+        <dia:point val="-5,-33"/>
+        <dia:point val="-7,-36"/>
+        <dia:point val="-7.5,-33"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O4" connection="13"/>
+        <dia:connection handle="3" to="O18" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O10">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-11,-31"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-11.05,-31.05;-7.95,-28.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-11,-31"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="3"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/ipv4#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-10.65,-29.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O11">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-14,-25"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-14.05,-25.05;-6.95,-22.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-14,-25"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/interfaces/[0-n]#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-13.65,-23.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O12">
+      <dia:attribute name="obj_pos">
+        <dia:point val="7,-16"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="6.95,-16.05;11.05,-13.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="7,-16"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/rx#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="7.35,-14.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O13">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-8,-16"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-8.05,-16.05;-3.95,-13.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-8,-16"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="4"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/queue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-7.65,-14.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O14">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-4,-16"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-4.05,-16.05;2.05,-13.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-4,-16"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="6"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/rx#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-3.65,-14.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O15">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-7,-9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-7.05,-9.05;-1.95,-6.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-7,-9"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/enqueue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-6.65,-7.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O16">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-7,-7"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-7.05,-7.05;-1.95,-4.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-7,-7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/dequeue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-6.65,-5.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O17">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-7,-5"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-7.05,-5.05;-1.95,-2.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-7,-5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/drop#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-6.65,-3.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O18">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-11,-33"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-11.05,-33.05;-3.95,-30.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-11,-33"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#InternetNode#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-7.5,-31.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O19">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-8,-18"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-8.05,-18.05;2.05,-15.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-8,-18"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="10"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2.0000000000000018"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#PointToPointNetDevice#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-3,-16.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O20">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-7,-11"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-7.05,-11.05;-1.95,-8.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-7,-11"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Queue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-4.5,-9.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O21">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-16,-27"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-16.05,-27.05;-6.95,-24.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-16,-27"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="9"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Ipv4L3Protocol#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-11.5,-25.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O22">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-17,-21"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-17.05,-21.05;-9.95,-18.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="-17,-21"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Ipv4Interface#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="-13.5,-19.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O23">
+      <dia:attribute name="obj_pos">
+        <dia:point val="3,-18"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="2.95,-18.05;11.05,-15.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="3,-18"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="8.0000000000000071"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#CsmaNetDevice#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="7,-16.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O24">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-9.5,-29"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-12,-29.0606;-9.38388,-26.95"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-9.5,-29"/>
+        <dia:point val="-9,-27"/>
+        <dia:point val="-11.5,-29"/>
+        <dia:point val="-11.5,-27"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O10" connection="13"/>
+        <dia:connection handle="3" to="O21" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O25">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-10.5,-23"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-13.9972,-23.0606;-10.4066,-20.8302"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-10.5,-23"/>
+        <dia:point val="-10,-21"/>
+        <dia:point val="-14,-23"/>
+        <dia:point val="-13.5,-21"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O11" connection="13"/>
+        <dia:connection handle="3" to="O22" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O26">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-6,-14"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-6.05,-14.05;-4.0028,-10.8302"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-6,-14"/>
+        <dia:point val="-6,-11"/>
+        <dia:point val="-5,-13"/>
+        <dia:point val="-4.5,-11"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O13" connection="13"/>
+        <dia:connection handle="3" to="O20" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O27">
+      <dia:attribute name="obj_pos">
+        <dia:point val="5,-14"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="4.95,-14.05;7,-10.95"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="5,-14"/>
+        <dia:point val="5,-12"/>
+        <dia:point val="6.5,-13"/>
+        <dia:point val="6.5,-11"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O3" connection="13"/>
+        <dia:connection handle="3" to="O33" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O28">
+      <dia:attribute name="obj_pos">
+        <dia:point val="2.5,-25"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-3.5,-25.05;2.55,-17.95"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="2.5,-25"/>
+        <dia:point val="2.5,-23"/>
+        <dia:point val="-3,-20"/>
+        <dia:point val="-3,-18"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O0" connection="13"/>
+        <dia:connection handle="3" to="O19" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O29">
+      <dia:attribute name="obj_pos">
+        <dia:point val="2.5,-25"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="2.45,-25.05;7.5,-17.95"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="2.5,-25"/>
+        <dia:point val="2.5,-23"/>
+        <dia:point val="7,-20"/>
+        <dia:point val="7,-18"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O0" connection="13"/>
+        <dia:connection handle="3" to="O23" connection="2"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O30">
+      <dia:attribute name="obj_pos">
+        <dia:point val="4,-9"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="3.95,-9.05;9.05,-6.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="4,-9"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/enqueue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="4.35,-7.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O31">
+      <dia:attribute name="obj_pos">
+        <dia:point val="4,-7"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="3.95,-7.05;9.05,-4.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="4,-7"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/dequeue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="4.35,-5.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O32">
+      <dia:attribute name="obj_pos">
+        <dia:point val="4,-5"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="3.95,-5.05;9.05,-2.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="4,-5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#/drop#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="4.35,-3.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="0"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Flowchart - Box" version="0" id="O33">
+      <dia:attribute name="obj_pos">
+        <dia:point val="4,-11"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="3.95,-11.05;9.05,-8.95"/>
+      </dia:attribute>
+      <dia:attribute name="elem_corner">
+        <dia:point val="4,-11"/>
+      </dia:attribute>
+      <dia:attribute name="elem_width">
+        <dia:real val="5"/>
+      </dia:attribute>
+      <dia:attribute name="elem_height">
+        <dia:real val="2"/>
+      </dia:attribute>
+      <dia:attribute name="inner_color">
+        <dia:color val="#e6c7c7"/>
+      </dia:attribute>
+      <dia:attribute name="show_background">
+        <dia:boolean val="true"/>
+      </dia:attribute>
+      <dia:attribute name="corner_radius">
+        <dia:real val="0.40000000000000002"/>
+      </dia:attribute>
+      <dia:attribute name="padding">
+        <dia:real val="0.10000000000000001"/>
+      </dia:attribute>
+      <dia:attribute name="text">
+        <dia:composite type="text">
+          <dia:attribute name="string">
+            <dia:string>#Queue#</dia:string>
+          </dia:attribute>
+          <dia:attribute name="font">
+            <dia:font family="sans" style="0" name="Helvetica"/>
+          </dia:attribute>
+          <dia:attribute name="height">
+            <dia:real val="1.1000000000000001"/>
+          </dia:attribute>
+          <dia:attribute name="pos">
+            <dia:point val="6.5,-9.75"/>
+          </dia:attribute>
+          <dia:attribute name="color">
+            <dia:color val="#000000"/>
+          </dia:attribute>
+          <dia:attribute name="alignment">
+            <dia:enum val="1"/>
+          </dia:attribute>
+        </dia:composite>
+      </dia:attribute>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O34">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-10,-18"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-10.0693,-20.6883;-5.0028,-17.8302"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-10,-18"/>
+        <dia:point val="-8,-21"/>
+        <dia:point val="-6.5,-22"/>
+        <dia:point val="-5.5,-18"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O7" connection="8"/>
+        <dia:connection handle="3" to="O19" connection="1"/>
+      </dia:connections>
+    </dia:object>
+    <dia:object type="Standard - BezierLine" version="0" id="O35">
+      <dia:attribute name="obj_pos">
+        <dia:point val="-10,-18"/>
+      </dia:attribute>
+      <dia:attribute name="obj_bb">
+        <dia:rectangle val="-10.0702,-22.2491;5.4972,-17.8302"/>
+      </dia:attribute>
+      <dia:attribute name="bez_points">
+        <dia:point val="-10,-18"/>
+        <dia:point val="-1,-25"/>
+        <dia:point val="4,-22"/>
+        <dia:point val="5,-18"/>
+      </dia:attribute>
+      <dia:attribute name="corner_types">
+        <dia:enum val="0"/>
+        <dia:enum val="0"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow">
+        <dia:enum val="22"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_length">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:attribute name="end_arrow_width">
+        <dia:real val="0.5"/>
+      </dia:attribute>
+      <dia:connections>
+        <dia:connection handle="0" to="O7" connection="8"/>
+        <dia:connection handle="3" to="O23" connection="1"/>
+      </dia:connections>
+    </dia:object>
+  </dia:layer>
+</dia:diagram>
diff --git a/doc/namespace-2.png b/doc/namespace-2.png
new file mode 100644
index 000000000..7ea379c82
Binary files /dev/null and b/doc/namespace-2.png differ